Optimized Hydrothermal Synthesis of Pharmacosiderite-Type Titanosilicates for Extraction of 137Cs and 90Sr from High-Salinity Liquid Media
Pharmacosiderite-type titanosilicates were prepared hydrothermally. The influence of the duration of hydrothermal synthesis on the cesium-137 and strontium-90 sorption properties of the titanosilicates, structural phase composition, surface morphology, and textural characteristics was investigated. The composition, morphology, and structure of the samples were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDX). The textural characteristics of materials were studied by BET and EDX. The sorption properties of disubstituted pharmacosiderite-type titanosilicates toward cesium and strontium radionuclides in microconcentrations were studied in adsorption experiments from model solutions of liquid radioactive waste (LRW) with low and medium concentrations of interfering impurities.
Authors
- V. O. Kaptakov (ORCID: https://orcid.org/0000-0002-3287-2968)
- V. Yu. Maiorov
- Nikita P. Ivanov (ORCID: https://orcid.org/0000-0002-7651-2091)
- A. N. Fedorets (ORCID: https://orcid.org/0000-0001-9007-3171)
- Е. К. Папынов (ORCID: https://orcid.org/0000-0002-1185-7718)
- Oleg Olegovich Shichalin (ORCID: https://orcid.org/0000-0002-2441-6209)
- Polina A. Marmaza (ORCID: https://orcid.org/0009-0007-6352-3537)
- Ya.G. Zernov
Institutions
- Sakhalin State University (RU)
- Far Eastern Federal University (RU)
- Frumkin Institute of Physical Chemistry and Electrochemistry Russian Academy of Sciences (RU)
- Far East Geological Institute (RU)
Publication Details
- Journal
- Russian Journal of Inorganic Chemistry
- Published
- 2025-03-01
- DOI
- https://doi.org/10.1134/s0036023625600224
- Citations
- 2
- Primary Topic
- Chemical Synthesis and Characterization
- Type
- article
- Field-Weighted Citation Impact
- 1.99